Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7987954 | Solid State Communications | 2018 | 5 Pages |
Abstract
Magnetorheological elastomers (MREs) are used as cladding in three-dimensional locally resonant acoustic metamaterial (LRAM) cores. The metamaterial units are combined into a vibration isolator. Two types of LRAMs, namely, cubic and spherical kernels, are constructed. The finite element method is used to analyze the elastic band structures, transmittances, and vibration modes of the incident elastic waves. Results show that the central position and width of the LRAM elastic bandgap can be controlled by the application of an external magnetic field; furthermore, they can be adjusted by changing the MRE cladding thickness. These methods contribute to the design of metamaterial MRE vibration isolators.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Zhenlong Xu, Jie Tong, Fugen Wu,